Profile: Last year's 12th-ranked Yankee prospect, Phelps surprised with a 3.34 ERA (4.01 xFIP) as he split time between New York's bullpen and rotation in 2012. The re-signing of Andy Pettitte and Hiroki Kuroda should banish him to a long relief role to start the season, so Phelps isn't anything more than a low-upside streamer and only in the event a starter goes down. (Colin Zarzycki)

Profile: For now, David Phelps is slotted in as the Yankees' fourth starter, but now that they have Masahiro Tanaka, things have changed a bit. If Michael Pineda can finally get healthy, Phelps will be reduced to spot-start duty. That is probably his ideal fantasy role, as well. As a starter in his career -- which is still less over less innings than a full-season starter -- Phelps has struck out 7.83 and walked 3.44 batters per nine, good for a 4.15 FIP. His strikeout and walk numbers are similar against right and left-handed batters, but he has allowed nearly twice as many home runs per nine against lefties (1.37 compared to 0.72). That will make him especially difficult to use in his home starts. (Scott Spratt)

The Quick Opinion: Phelps' role remains up in the air as the Yankees' rotation gets more crowded. Even if Phelps becomes a rotation mainstay, his pedestrian strikeout and walk numbers and home park make him a spot starter in all but the deepest leagues.

Profile: After establishing himself as a reliable swingman for the Yankees, Phelps was traded to the Marlins in December as part of the Martin Prado-Nathan Eovaldi deal. Phelps, 28, has averaged about 100 innings per season since entering the big leagues in 2012, but he’s been trending downward since his rookie year: his strikeout-to-walk ratio and swinging strike percentage have declined each season, while his SIERA and line drive percentage have risen. In 17 starts last year, Phelps was mediocre, with a middling WHIP and 4.18 FIP. It’s not clear how Phelps will figure into the Marlins’ plans; Henderson Alvarez, Mat Latos, Jarred Cosart and Tom Koehler already have rotation slots, Dan Haren could be a starting option if he doesn’t retire or isn’t traded, and Jose Fernandez is expected back in July. Brad Hand also could factor into the mix in the competition for the fifth starter’s job to open the season. As a middle reliever, of course, Phelps would have virtually no value in fantasy, but even if he were to snag a rotation spot, he doesn’t offer owners a lot of help. (Karl de Vries)

The Quick Opinion: A move to the National League and a pitcher’s park should help Phelps, but he’s probably no more than a streaming option if and when he picks up starts.

Profile: For most of his Yankees’ career, David Phelps was a swing man, throwing between 80 and 120 innings per season split between spot starts and the bullpen. In 2015, the Marlins deployed Phelps predominantly as a starter, and he enjoyed moderate success. He struck out 6.2 batters per nine and walked 2.7 batters per nine, the latter easily a career best. His career 42% ground ball rate fits well in the spacious Marlins Park, which helped limit his home run per flyball rate to 8.7%. His first-half ERA of 3.86, FIP of 3.87, and WHIP of 1.24 were all decent and usable in deeper formats even with his low strikeout rate. Then, in the second half, Phelps fell apart, likely influenced by a stress fracture in his right forearm that ended his season in early August. He is expected to return healthy in time for spring training in 2016. Fantasy owners in deeper formats would be wise to use Phelps like the Yankees used to, in spot starts. In particular, consider deploying Phelps at home against favorable opponents. There, he should help your ratios enough to offset his moderate strikeout rate. (Scott Spratt)

The Quick Opinion: David Phelps should be ready for the start of 2016 following his late-season forearm stress fracture. He can be a deep league spot starter in his home starts, providing decent ratios but few strikeouts.

Profile: It was easy to attribute Phelps' velocity bump in 2016 to his permanent move to the bullpen. Pitching exclusively in relief, he picked up about 3.5 mph on his four-seamer and sinker and a tick or two on all of his off-speed pitches. (Important because, as one Carson Cistulli noted, "as with most other pitchers, Phelps at 94-95 is markedly different than Phelps at 91.") Yet Phelps started five games in August and pumped 94 throughout, all but dispelling the notion that the bullpen's exclusively to thank. Even in short relief, his four pitches induced whiffs on swings about 50% more often than before. For reasons unthinkable, Miami will reportedly rely on other arms (presumably Justin Nicolino/Jeff Locke) to fill out its rotation, seemingly content to not find out if Phelps can replicate his 2.97 xFIP in his (very brief) stint as a starter that was even better than his 3.22 xFIP as a reliever. His walk rate raises concerns, but guys like Tyson Ross and Drew Pomeranz have made free passes work in conjunction with excellent strikeout rates. Alas, the middle-of-the-road Marlins may forgo a marvelous opportunity to cultivate a potentially 3-WAR player. Injuries and ineptitude could probably open the door for Phelps to re-enter the rotation, but the Marlins seem steadfast. He's a name to remember this year in case he returns to the bump, but until then, he won't be much more than a middle-relief strikeout machine and, thus, not really a draft day consideration. (Alex Chamberlain)

The Quick Opinion: Phelps suddenly became a flame-throwing strikeout machine who produced a 3.15 xFIP despite issuing too many free passes. Unfortunately, the Marlins reportedly don't plan to use him in the rotation at all in 2017, so it's hard to get excited about his potential. He's a name to remember, but it's hard to justify drafting and stashing him outside of dynasty or NL-only redraft leagues.